박정위 교수

Deep gluteal syndrome is an increasingly recognized disease entity, caused by compression of the sciatic or pudendal nerve due to non-discogenic pelvic lesions. It includes the piriformis syndrome, the gemelli-obturator internus syndrome, the ischiofemoral impingement syndrome, and the proximal hamstring syndrome. The concept of the deep gluteal syndrome extends our understanding of posterior hip pain due to nerve entrapment beyond the traditional model of the piriformis syndrome. Nevertheless,

Level III.

Trends of revision THA in South Korea were similar with those of national registry studies from the United States. The annual incidence of revision THA has steadily increased, whereas its burden has decreased. Findings of our study could be used for epidemiological comparison between Western countries and East Asia as well as for the establishment of medical policies of revision THA in East Asian countries.

The total number of surgical procedures performed for ONFH increased and the percentage of THA increased, while that of joint preservation procedures decreased from 2007 to 2018 in South Korea.

Therapeutic Level II . See Instructions for Authors for a complete description of levels of evidence.

Present study was registered on Internet-based Clinical Research and Trial management system (iCReaT) as multicenter prospective observational cohort study (Project number: C160022, Date of registration: 22th, Apr, 2016).

The results of this study might provide information needed to solve problems and improve satisfaction of patients undergoing THA.

Noncemented fixation had better survivorship than cemented fixation in patients with ONFH.

A considerable percentage of femoral neck fracture patients (8.6%) had small proximal femurs (ALPF < 80 mm), which cannot be operated with FNS. We recommend measuring the ALPF using reconstructed oblique coronal CT images or scaled hip radiographs: <i>en face</i> view of the femoral neck prior to surgery in patients with short stature and/or low body weight. If the ALPF is < 80 mm, the surgeon should prepare other fixation devices.

Our study highlights the moderate interobserver reliability of both the previous and new AO/OTA classification systems for diaphyseal femur fractures. These findings emphasize the importance of standardized systems in clinical decision-making and underscore the need for ongoing education and collaboration to enhance fracture classification.

Nontraumatic osteonecrosis of the femoral head (ONFH) usually affects young and middle-aged adults and frequently leads to femoral head collapse and subsequent arthritis of the hip. The incidence of the disease is increasing in accordance with the increased use of glucocorticoids for the adjuvant therapy of leukemia and other myelogenous diseases as well as the management of organ transplantation. This review provides up-to-date knowledge on the etiology and pathogenesis, natural history of ONFH

Treatment strategies for femoroacetabular impingement (FAI) syndrome have evolved in tandem with increased comprehension of FAI's impact on hip joint health. Early intervention, including arthroscopic surgery, has gained popularity due to its potential to delay the progression of osteoarthritis. Arthroscopic surgery has demonstrated significant efficacy in treating FAI syndrome, with robust evidence from randomized controlled trials and systematic reviews supporting its use. Despite arthroscopic

Among postmenopausal women with osteoporosis, only 27.2% complied with SERM therapy. A marginal difference in hip fracture rate was observed between the compliant and non-compliant groups. Older age and severe comorbidities were associated with higher risks of osteoporotic fractures.